Crystallization (Comment) | Organism |
---|---|
mutant enzyme D150A, crystallization complexed with xanthosine 5'-monophosphate, diphosphate and 2 Mg2+, post transition state structure analysis, active site structure | Toxoplasma gondii |
Protein Variants | Comment | Organism |
---|---|---|
D150A | reduced activity compared to wild-type, kcat for hypoxanthine, guanine, and xanthine are reduced by 11fold, 296fold, and 8.6fold, respectively, Km value for alpha-D-5-phosphoribosyl 1-diphosphate is reduced by 6.5fold | Toxoplasma gondii |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Toxoplasma gondii | Q26997 | - |
- |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
IMP + diphosphate = hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate | catalytic mechanism | Toxoplasma gondii | |
IMP + diphosphate = hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate | active site structure | Toxoplasma gondii |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
guanine + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Toxoplasma gondii | GMP + diphosphate | - |
? | |
hypoxanthine + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Toxoplasma gondii | IMP + diphosphate | - |
? | |
xanthine + 5-phospho-alpha-D-ribose 1-diphosphate | - |
Toxoplasma gondii | XMP + diphosphate | - |
? |
Subunits | Comment | Organism |
---|---|---|
More | structure determination and analysis | Toxoplasma gondii |
tetramer | - |
Toxoplasma gondii |